/* 
 * File:   main2.cpp
 * Author: Vicky.H
 * Email:  eclipser@163.com
 */

#include "testutil.hpp"

#if defined (ZMQ_HAVE_WINDOWS)
#include <winsock2.h>
#include <stdexcept>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#endif

#if defined (ZMQ_HAVE_WINDOWS)

void initialise_network() {
    WSADATA info;
    if (WSAStartup(MAKEWORD(2, 0), &info) != 0) {
        throw std::runtime_error("Could not start WSA");
    }
}

int close(int fd) {
    return closesocket(fd);
}

#else

void initialise_network() {
}

#endif

//  This test case stresses the system to shake out known configuration
//  problems. We're not using libzmq here but direct system calls. Note
//  that code may need wrapping to be properly portable.

int main(void) {
    initialise_network();

    //  Check that we can create 1,000 sockets
    int handle [1000];
    int count;
    for (count = 0; count < 1000; count++) {
        handle [count] = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
        if (handle [count] == -1) {
            printf("W: Only able to create %d sockets on this box\n", count);
            printf("I: Tune your system to increase maximum allowed file handles\n");
#if defined (ZMQ_HAVE_OSX)
            printf("I: On OS/X, run 'ulimit -n 1200' in bash");
#elif defined (ZMQ_HAVE_LINUX)
            printf("I: On Linux, run 'ulimit -n 1200' in bash");
#endif        
            return -1;
        }
    }
    //  Release the socket handles
    while (count)
        close(handle [count--]);
}

